CN220819371U - Vibration and impact test clamp for airborne suspended matters - Google Patents

Abstract

The utility model belongs to the technical field of product testing, and particularly relates to an onboard suspension vibration and impact test fixture which comprises a main body structure, a suspension adapter plate and a flexible supporting system, wherein the main body structure comprises an upper cover, a base and a leveling counterweight, and the flexible supporting system comprises a flexible supporting vertical plate, a flexible supporting base, a guide bearing and a supporting air bag. The utility model has good mechanical properties, high rigidity, high natural frequency and good transmission property, can well complete vibration and impact tests of airborne suspended objects, can select different leveling counterweights according to different suspended objects, thereby adjusting the gravity center of a test system, protecting test equipment, and adapting different suspended object adapter plates to an upper cover, thereby realizing a set of main structure, completing vibration and impact tests of various suspended objects, and realizing flexible support systems in vertical test without using an electric vibration table vertical expansion table, greatly improving the effective thrust of the electric vibration table and improving the upper limit of test capability.

Description

Vibration and impact test clamp for airborne suspended matters

Technical Field

The utility model belongs to the technical field of product testing, and particularly relates to a vibration and impact test clamp for an airborne suspension.

Background

The airborne suspended object is in the process of hanging and free flight due to the following components:

(1) Mounting an aircraft engine to disturb flow;

(2) Pneumatic turbulence hanging on Cheng Waigua surface;

(3) Transfer of vibration of a flying aircraft:

(5) Structural resonance caused by maneuvering flight of the aircraft;

(6) When free flying, the external engine exhaust noise, vibration or noise generated by internal equipment, auxiliary surface turbulence and the like can cause the external weapon to vibrate.

These vibrations and shocks will affect the performance of the on-board suspension.

As a weapon system for first assembly of a certain type of aircraft, a certain suspended object is subjected to severe vibration and impact load in the flight and take-off and landing processes, and in order to ensure the flying safety of the suspended object, the vibration and impact resistance of the certain type of airborne suspended object needs to be verified in a laboratory.

In practical vibration test, the test piece or the clamp is often larger than the moving coil table top of the electric table, the original table top needs to be expanded, and an auxiliary expansion table top is usually arranged.

The vibration and impact test clamp for the traditional suspended matters is mainly formed by welding square steel, and the defects of the clamp are obvious. Firstly, the mechanical transmission characteristics are poor, and particularly the vibration and impact load can not be well transmitted in a low frequency band; secondly, the gravity center of the airborne suspended object is relatively forward, the traditional clamp only simulates and records the installation mode of the suspended object, and the clamp does not have the capacity of adjusting the gravity center position of the test system, so that the damage to the electric vibration table is relatively large; thirdly, each set of clamp can only load one suspended object, so that the economy is poor; fourth, the vertical test requires the help of an electric vibration table to vertically extend the table, so that effective thrust is wasted, and the upper limit of the weight of the suspended object to be tested is limited.

Disclosure of utility model

In order to overcome the defects in the prior art, the utility model provides the vibration and impact test clamp for the airborne suspension.

The utility model is realized according to the following technical scheme.

The utility model provides an airborne suspended matter vibration, impact test anchor clamps, including the major structure, with the suspended matter keysets and the flexible braced system of major structure connection, the major structure includes upper cover, the base and the leveling counter weight of being connected with the upper cover, the suspended matter keysets includes the rectangle bottom plate, the flexible braced system includes a pair of flexible support riser that is parallel to each other, with flexible support pedestal that the flexible support riser is connected, with the direction bearing and the support gasbag that the flexible support pedestal is connected, the upper cover includes a pair of parallel first end wallboard, the first connecting plate of connection between first end wallboard and the lower extreme of first connecting plate, first connecting plate includes the first connecting plate lower part that is the perpendicular V type of falling and the both sides wall lower extreme of first connecting plate upper portion extend, be equipped with a plurality of first reinforcing plates on the upper cover lateral wall, the base is vertical base or horizontal base, the vertical base includes a pair of parallel second end wallboard, the second connecting plate and the first upper end of second connecting plate that are connected between the second end wallboard and the vertical base, the second connecting plate upper end board is perpendicular to be equipped with the rectangle vertical base, the second connecting plate is equipped with the perpendicular recess between the vertical base and the vertical base is equipped with the perpendicular base of two, the first reinforcing plates is equipped with the perpendicular trapezoidal recess, the vertical base is equipped with the perpendicular side wall top and the perpendicular side of the vertical recess is perpendicular to the first connecting plate, the vertical base is equipped with the vertical recess between the vertical base and the vertical base is perpendicular to the vertical base, the vertical base is equipped with the vertical recess top and the vertical side of the vertical base is equipped with the vertical flange, the vertical side wall and the vertical extension top and the vertical recess top is equipped with the vertical base, the flexible support base is a frame structure composed of a pair of parallel inverted trapezoidal support beams and a pair of L-shaped connecting pieces vertically connected with two ends of the inverted trapezoidal support beams, each L-shaped connecting piece comprises a rectangular second vertical plate and a rectangular second transverse plate vertically connected with the second vertical plate, a plurality of trapezoid sixth reinforcing plates are arranged in an included angle formed by the second vertical plates and the second transverse plates, two ends of each second transverse plate are vertically connected with two ends of the inverted trapezoidal support beams, each guide bearing comprises a parallel rectangular first upper connecting plate, a first lower connecting plate and a cylindrical bearing vertically arranged in the middle of the first upper connecting plate and the first lower connecting plate, a first sleeve and a second sleeve are respectively arranged in the middle of the first upper connecting plate and the first lower connecting plate, the upper end of each cylindrical bearing penetrates through the first upper connecting plate and the first sleeve, the lower end of each cylindrical bearing is embedded into the second sleeve, the first upper connecting plate of each guide bearing is vertically connected with the two ends of the corresponding L-shaped connecting plates, the second transverse plates are vertically connected with the second connecting plates of the second transverse plates, and the second transverse plates of the guide bearing are vertically connected with the second connecting plates of the second upper connecting plates and the second transverse plates of the second connecting plates of the air bag, and the second connecting plates of the air bag are vertically connected with the second connecting plates of the air bag and the air bag is arranged below the second connecting plates of the air bag.

Compared with the prior art, the utility model has the beneficial effects that:

1. The vibration and impact test device has good mechanical properties, high rigidity, high natural frequency and good transmission properties, and can well complete the vibration and impact test of the airborne suspended matter.

2. Different leveling counterweights can be selected according to different suspended objects, and new counterweights can be formed by combining the two counterweights, so that the gravity center of the test system is adjusted, and test equipment is protected.

3. The top of the upper cover is designed into a porous structure, and different suspended object adapter plates can be adapted according to different suspended objects, so that a set of main body structure is realized, various suspended object vibration and impact tests are completed, and resources are saved.

4. The flexible support system is equipped in the vertical test, so that an electric vibration table vertical expansion table is not needed, the effective thrust of the electric vibration table is greatly improved, and the upper limit of test capability is improved.

Drawings

FIG. 1 is a schematic illustration of the present utility model;

FIG. 2 is a schematic diagram of the connection of the upper cover to the vertical base;

FIG. 3 is a top plan view of the upper cover of the present utility model;

FIG. 4 is a schematic view of the upper cover of the present utility model;

FIG. 5 is a schematic view of a vertical base of the present utility model;

FIG. 6 is a schematic view of a vertical base of the present utility model;

FIG. 7 is a schematic view of a horizontal base in the present utility model;

FIG. 8 is a schematic diagram of a leveling weight in the present utility model;

FIG. 9 is a schematic view of a suspension adapter plate of the present utility model;

FIG. 10 is a second schematic view of a suspension adapter plate of the present utility model;

FIG. 11 is a schematic view of a flexible support system in accordance with the present utility model;

FIG. 12 is a schematic view of a flexible support riser in accordance with the present utility model;

FIG. 13 is a schematic view of a flexible support base in accordance with the present utility model;

FIG. 14 is a schematic view of a guide bearing in the present utility model;

FIG. 15 is a schematic view of a first upper web and a first sleeve in a guide bearing;

FIG. 16 is a schematic view of a first lower web and a second sleeve in a guide bearing;

FIG. 17 is a schematic view of a cylindrical bearing;

FIG. 18 is a schematic view of a support airbag of the present utility model;

FIG. 19 is a schematic view of a second lower attachment plate in a support airbag;

FIG. 20 is a schematic view of a rubber bladder;

FIG. 21 is a cross-sectional view of a support airbag;

FIG. 22 is a schematic view of a support airbag I in accordance with the present utility model;

fig. 23 is a schematic view of a second lower connecting plate i in the support airbag i.

Wherein 1-upper cover, 11-first end wall plate, 12-first connecting plate, 121-first connecting plate upper portion, 122-first connecting plate lower portion, 13-lower end plate, 1 a-first through hole, 1 b-lifting hole, 1 c-first reinforcing plate, 1 d-first threaded hole, 1 e-first through hole, 2-base, 21-vertical base, 211-second end wall plate, 212-second connecting plate, 213-first upper end plate, 214-boss, 21 a-second through hole, 21 b-second through hole, 21 c-second reinforcing plate, 21 d-second threaded hole, 21 e-third reinforcing plate, 21 f-fourth reinforcing plate, 22-horizontal base, 221-third end wall plate, 222-third connecting plate, 223-second upper end plate, 22 a-tenth through hole, 22 b-fourth through hole, 22 c-seventh reinforcing plate, 22 d-eighth reinforcing plate, 3-leveling weight, 3 a-third threaded hole, 3 b-third through hole, 4-bottom plate, 4 a-fourth threaded hole, 4 b-horizontal through hole, 4 c-vertical through hole, 41-adapter I, 42-adapter II, 5-flexible supporting riser, 51-first riser, 52-first cross plate, 511-trapezoid upper portion, 512-rectangular lower portion, 5 a-fifth through hole, 5 b-first waist-shaped hole, 5 c-fifth reinforcing plate, 6-flexible supporting base, 61-inverted trapezoid, 62-L-shaped connecting piece, 621-second riser, 622-second cross plate, 6 a-connecting riser through hole, the support airbag is connected by 6 b-through holes I, 6 c-through holes for guiding bearings, 6 d-sixth reinforcing plate, 6 e-sixth through holes, 6 f-second waist-shaped hole, 6 g-through holes for supporting airbags II, 7-guiding bearings, 71-first upper connecting plate, 71 a-seventh through hole I, 72-first lower connecting plate, 72 a-seventh through hole II, 72 b-seventh through hole III, 73-cylindrical bearings, 73 a-seventh threaded hole, 74-first sleeve, 75-second sleeve, 8-supporting airbags, 81-second upper connecting plate, 81 a-eighth through hole I, 81 b-third waist-shaped hole, 81 c-third through hole, 82-second lower connecting plate, 82 a-eighth through hole II, 82 b-fourth waist-shaped hole, 82 c-fourth through hole, 83-rubber airbags, 83 a-sixth threaded hole, 83 b-eighth through hole III, 9-supporting airbags I, 91-second upper connecting plate I, 91 a-ninth through hole I, 92 a-second lower through hole I, 92 b-fourth waist-fourth through hole I, 92 b-fourth through hole I.

Detailed Description

The technical scheme of the utility model is further described below with reference to the accompanying drawings and the embodiments.

As shown in fig. 1 to 23, an on-board suspension vibration and impact test fixture comprises a main body structure, a suspension adapting plate connected with the main body structure and a flexible support system, wherein the main body structure comprises an upper cover 1, a base 2 connected with the upper cover 1 and a leveling weight 3, the suspension adapting plate comprises a rectangular bottom plate 4, the flexible support system comprises a pair of flexible support vertical plates 5 parallel to each other, a flexible support base 6 connected with the flexible support vertical plates 5, a guide bearing 7 connected with the flexible support base 6 and a support airbag 8, the upper cover 1 comprises a pair of parallel first end wall plates 11, a first connecting plate 12 connected between the first end wall plates 11 and a lower end plate 13 at the lower end of the first connecting plate 12, the first connecting plate 12 comprises a first connecting plate upper part 121 in the shape of an inverted flat bottom V and first connecting plate lower parts 122 extending from the lower ends of two side walls of the first connecting plate upper part 121 and parallel to each other, the outer side wall of the upper cover 1 is provided with a plurality of first reinforcing plates 1c, the base 2 is a vertical base 21 or a horizontal base 22, the vertical base 21 comprises a pair of parallel second end wall plates 211, a second connecting plate 212 connected between the second end wall plates 211 and a first upper end plate 213 at the upper end of the second connecting plate 212, the second connecting plate 212 is flat-bottom V-shaped, a plurality of rectangular second reinforcing plates 21c with arc-shaped grooves between the upper end and the lower end are vertically connected between two side walls of the vertical base 21, the outer side of the bottom of the vertical base 21 and the outer side of the two side walls are respectively provided with a plurality of triangular third reinforcing plates 21e and fourth reinforcing plates 21f, the leveling weights 3 are of rectangular plate structures, the flexible supporting vertical plates 5 comprise a first vertical plate 51 and a first transverse plate 52 vertically connected with the first vertical plate 51, the first vertical plate 51 comprises a trapezoid upper part 511 with an arc-shaped groove at the upper end and a rectangular lower part 512 extending from the lower end of the trapezoid upper part 511, a plurality of triangle fifth reinforcing plates 5c are arranged in an included angle formed by the first vertical plate 51 and the first transverse plate 52, the flexible supporting base 6 is a frame structure formed by a pair of parallel inverted trapezoid supporting beams 61 and a pair of L-shaped connecting pieces 62 vertically connected with two ends of the inverted trapezoid supporting beams 61, the L-shaped connecting pieces 62 comprise a rectangular second vertical plate 621 and a rectangular second transverse plate 622 vertically connected with the second vertical plate 621, a plurality of trapezoid sixth reinforcing plates 6d are arranged in an included angle formed by the second vertical plate 621 and the second transverse plate 622, two ends of the second transverse plate 622 are vertically connected with two ends of the inverted trapezoid supporting beams 61, the guide bearing 7 comprises a parallel rectangular first upper connecting plate 71, a first lower connecting plate 72 and a cylindrical bearing 73 vertically arranged in the middle of the first upper connecting plate 71 and the first lower connecting plate 72, a first sleeve 74 and a second sleeve 75 are respectively arranged in the middle of the first upper connecting plate 71 and the first lower connecting plate 72, the upper end of the cylindrical bearing 73 penetrates through the first upper connecting plate 71 and the first sleeve 74, the lower end of the cylindrical bearing 73 is embedded into the second sleeve 75, the first upper connecting plate 71 of the guide bearing 7 is connected with a second transverse plate 622 of the L-shaped connecting piece 62, the first upper connecting plate 71 is connected above the second transverse plate 622, the support airbag 8 comprises a parallel rectangular second upper connecting plate 81, a second lower connecting plate 82 and a gourd-shaped rubber airbag 83 arranged between the second upper connecting plate 81 and the second lower connecting plate 82, the second upper connecting plate 81 of the support airbag 8 is connected with the second transverse plate 622 of the L-shaped connecting piece 62, the second upper connection plate 81 is connected below the second transverse plate 622.

The horizontal base 22 of the vibration and impact test fixture for the airborne suspended matter comprises a pair of parallel third end wall plates 221, a third connecting plate 222 connected between the third end wall plates 221 and a second upper end plate 223 at the upper end of the third connecting plate 222, wherein the third connecting plate 222 is in a flat-bottom U shape, two side walls of the horizontal base 22 are respectively provided with a horizontal rectangular seventh reinforcing plate 22c, and a plurality of rectangular eighth reinforcing plates 22d with arc-shaped grooves between the upper end and the lower end are vertically connected between the two side walls.

The machine-mounted suspension vibration and impact test clamp is characterized in that a plurality of phi 18 first through holes 1a are formed in the top of an upper cover 1, phi 16 first threaded holes 1d are formed in the top of a first end wall plate 11 of the upper cover 1, phi 18 third through holes 3b are formed in a leveling balance weight 3, the third through holes 3b of the leveling balance weight 3 are connected with the first threaded holes 1d in the upper cover 1 through socket head cap screws, phi 18 first through holes 1e are formed in a lower end plate 13 of the upper cover 1, phi 18 second through holes 21b are formed in a first upper end plate 213 of a vertical base 21, the first through holes 1e in the upper cover 1 are connected with second through holes 21b in the vertical base 21 through socket head cap screws, phi 16 fourth threaded holes 4a are formed in a bottom plate 4 of a suspension balance weight plate, the fourth threaded holes 4a of the suspension balance weight plate are connected with the first through holes 1a of the upper cover 1 through socket head cap screws, middle part belt first through holes 1e are formed in the outer side of a second connecting plate 212 of the vertical base 21, phi 18 second through holes 21 are uniformly distributed in the radial direction of the second through holes 21a vertical through holes 21, and the second through holes 21 are uniformly distributed in the radial direction of the second through holes 21 are uniformly distributed on the second through holes 21.

The vibration and impact test fixture for the airborne suspended matters is characterized in that a phi 18 fourth through hole 22b is formed in a second upper end plate 223 of a horizontal base 22 of the vibration and impact test fixture, a first through hole 1e in the upper cover 1 is connected with the fourth through hole 22b in the horizontal base 22 through an inner hexagon screw, a round hole is formed in the middle of the bottom of a third connecting plate 222 of the horizontal base 22, phi 20 tenth through holes 22a are uniformly distributed in the periphery of the round hole in a radial mode, and the tenth through holes 22a are connected with a horizontal sliding table of a vibrating table through screws.

The second end wall plate 211 of the vertical base 21 of the vibration and impact test fixture for the airborne suspended matter is provided with a phi 16 second threaded hole 21d, the first vertical plate 51 of the flexible supporting vertical plate 5 is provided with a phi 18 fifth through hole 5a, and the second threaded hole 21d of the second end wall plate 211 is connected with the fifth through hole 5a of the first vertical plate 51 through a screw.

The vibration and impact test fixture for the airborne suspended object is characterized in that a first transverse plate 52 of a flexible supporting vertical plate 5 is provided with a 62 multiplied by 22mm first waist-shaped hole 5b, an inverted trapezoid supporting beam 61 of an L-shaped connecting piece 62 is provided with a phi 22 connecting vertical plate through hole 6a, a second transverse plate 622 of the L-shaped connecting piece 62 is provided with a phi 22 connecting supporting air bag through hole I6 b, a phi 22 connecting guiding bearing through hole 6c, a phi 110 sixth through hole 6e, a 20 multiplied by 6mm second waist-shaped hole 6f and a phi 22 connecting supporting air bag through hole II 6g, a first waist-shaped hole 5b on the first transverse plate 52 is connected with a connecting vertical plate through hole 6a on the second transverse plate 622 through screws, four corners of a first upper connecting plate 71 of the guiding bearing 7 are provided with a phi 22 seventh through hole I71 a, four corners of a first lower connecting plate 72 of the guiding bearing 7 are provided with a phi 22 seventh through hole II 72a, the first lower connecting plate 72 in the second sleeve 75 is provided with a phi 18 seventh through hole III 72b, the bottom of the cylindrical bearing 73 is provided with a phi 16 seventh threaded hole 73a, the seventh through hole III 72b on the first lower connecting plate 72 is connected with the seventh threaded hole 73a on the cylindrical bearing 73 through a screw, the seventh through hole I71 a on the first upper connecting plate 71 is connected with the connection guiding bearing through hole 6c on the second transverse plate 622 through a screw, four corners of the second upper connecting plate 81 of the supporting air bag 8 are provided with a phi 22 eighth through hole I81 a, four corners of the second lower connecting plate 82 of the supporting air bag 8 are provided with a phi 22 eighth through hole II 82a, the eighth through hole I81 a on the second upper connecting plate 81 is connected with the connection supporting air bag through hole II 6g through a screw, the cylindrical bearing 73 passes through the sixth through hole 6e, the seventh through hole ii 72a of the first lower connecting plate 72 and the eighth through hole ii 82a of the second lower connecting plate 82 are both connected to the vibrating table base by screws.

The vibration and impact test clamp for the airborne suspended matter is characterized in that the suspended matter adapter plate further comprises an adapter piece I41 connected with the middle of the bottom plate 4, and a phi 12 horizontal through hole 4b is formed in the adapter piece I41 and perpendicular to the fourth threaded hole 4 a.

The vibration and impact test clamp for the airborne suspended matter comprises a suspended matter adapter plate, and is characterized in that the suspended matter adapter plate further comprises an adapter piece II 42 connected with the middle of the bottom plate 4, and a phi 12 vertical through hole 4c is formed in the adapter piece II 42 and parallel to the fourth threaded hole 4 a.

The vibration and impact test fixture for the airborne suspended object is characterized in that the middle parts of a second upper connecting plate 81 and a second lower connecting plate 82 of a supporting air bag 8 are respectively provided with a third waist-shaped hole 81b with the diameter of 20 multiplied by 6mm and a fourth waist-shaped hole 82b with the diameter of 20 multiplied by 6mm, two sides of the third waist-shaped hole 81b and the fourth waist-shaped hole 82b are respectively provided with a pair of third through holes 81c and a pair of fourth through holes 82c, the middle parts of the upper top end and the lower top end of the rubber air bag 83 are respectively provided with a pair of phi 8 sixth threaded holes 83a and a phi 8 eighth through hole 83b, the pair of sixth threaded holes 83a and the eighth through hole 83b are distributed in an isosceles triangle, the pair of sixth threaded holes 83a and the third through holes 81c of the rubber air bag 83 are connected through screws, and the other pair of sixth threaded holes 83a and the fourth through holes 82c of the rubber air bag 83 are connected through screws.

The first end wall plate 11, the first connecting plate 12, the lower end plate 13 and the first reinforcing plate 1c of the upper cover 1 are integrally formed, the second end wall plate 211, the second connecting plate 212, the first upper end plate 213, the second reinforcing plate 21c, the third reinforcing plate 21e and the fourth reinforcing plate 21f of the vertical base 21 are integrally formed, the third end wall plate 221, the third connecting plate 222, the second upper end plate 223, the seventh reinforcing plate 22c and the eighth reinforcing plate 22d of the horizontal base 22 are integrally formed, the bottom plate 4 and the adapter I41 or the adapter II 42 of the hanging adapter plate are integrally formed, the first vertical plate 51, the first transverse plate 52 and the fifth reinforcing rib 5c of the flexible supporting vertical plate 5 are integrally formed, and the second vertical plate 621, the second transverse plate 622 and the sixth reinforcing plate 6d of the L-shaped connecting piece 62 are integrally formed.

A plurality of reinforcing plates are arranged on the outer side wall of the upper cover 1 and are intersected with the first reinforcing plate 1c, and the reinforcing plates and the first reinforcing plate 1c are integrally formed.

The first end wall plate 11 of the upper cover 1 comprises a first end wall plate upper portion in an inverted flat bottom V shape and a first end wall plate lower portion extending from lower ends of two side walls of the first end wall plate upper portion and being parallel to each other, and the lower end plate 13 of the upper cover 1 is rectangular.

The third end wall plate 221 of the horizontal base 22 has a flat bottom U shape, and the second upper end plate 223 has a rectangular shape.

The top of the upper cover 1 is provided with phi 16 lifting holes 1b, the phi 16 lifting holes 1b are used for lifting the upper cover 1 in the installation and transportation processes, and the number of the lifting holes 1b is 4 and the lifting holes are distributed in a rectangular shape.

The base 2 in fig. 1 is a vertical base 21.

And a phi 14 third threaded hole 3a is formed in the rectangular plate of the leveling counterweight 3, and the third threaded hole 3a is a hoisting hole and is perpendicular to the third threaded hole 3 b.

The suspension object adapter plate is designed according to different airborne suspension object shapes and linking requirements. As shown in fig. 9 and 10, the adaptor i 41 and the adaptor ii 42 of the suspension adaptor board are respectively provided with a horizontal through hole 4b and a vertical through hole i 4c, which are test article connecting holes for connecting test articles.

The second transverse plate 622 of the L-shaped connecting piece 62 is provided with a second waist-shaped hole 6f, the third waist-shaped hole 81b of the second upper connecting plate 81 corresponds to the second waist-shaped hole 6f, and the rubber air bag 83 in the support air bag 8 assists in adjusting the whole clamp to be in a vertical state, so that the clamp is not inclined to a certain direction, and the action is equal to a spring. The eighth through hole III 83b of the rubber bag 83 is an inflation port, and is sealed by a plug after inflation. The eighth through hole iii 83b on the rubber air bag 83 corresponds to the third waist-shaped hole 81b on the second upper connecting plate 81, and after the support air bag 8 is connected to the flexible support base, a sufficient space is reserved at the top, so that the eighth through hole iii 83b at the top of the rubber air bag 83 can be externally connected with an inflation air pipe.

The first sleeve 74 and the second sleeve 75 in the guide bearing 7 are integrally formed with the first upper connection plate 71 and the first lower connection plate 72, respectively. The upper end of the cylindrical bearing 73 passes through the first upper connecting plate 71 and the first sleeve 74, that is, a circular hole with the same diameter as the first sleeve 74 is formed in the middle of the first upper connecting plate 71, and the diameter of the cylindrical bearing 73 is smaller than the circular hole and the inner diameter of the first sleeve 74, so that the cylindrical bearing 73 can swing back and forth in the first sleeve 74. The first lower connecting plate 72 is provided with a seventh through hole II 72a, and the seventh through hole II 72a is connected with the vibrating table base through a screw, so that the flexible supporting base 6 is not eccentric when moving up and down, and the linear motion is ensured.

As shown in fig. 18, the rectangular second upper connecting plate 81 and the rectangular second lower connecting plate 82 of the support airbag 8 have the same size, and the four eighth through holes i 81a on the second upper connecting plate 81 and the four eighth through holes ii 82a on the second lower connecting plate 82 have the same layout, and are respectively disposed at four corners of the second upper connecting plate 81 and the second lower connecting plate 82, and the eighth through holes ii 82a are connected with the vibrating table base through screws.

As shown in fig. 22 and 23, the support airbag is another structure of the support airbag i 9, wherein the rectangular second upper connecting plate i 91 and the rectangular second lower connecting plate i 92 are different in size, four Φ22 ninth through holes i 91a on the second upper connecting plate i 91 are arranged at four corners of the second upper connecting plate i 91, four Φ22 ninth through holes ii 92a on the second lower connecting plate i 92 are in rectangular arrangement, the right side of the rubber airbag 83 arranged between the second upper connecting plate i 91 and the second lower connecting plate i 92, a fourth waist-shaped hole i 91b of 20×6mm is further arranged on the second lower connecting plate i 92, a pair of Φ12 fourth through holes i 92c are arranged at two sides of the fourth waist-shaped hole i 91b, and the ninth through holes ii 92a are connected with the vibrating table base through screws.

As shown in fig. 13, from the layout of the connecting support bag through holes i 6b and the connecting support bag through holes ii 6g, the above two support bags 8 and i 9 are connected to the flexible support base 6 at intervals, one support bag 8 shown in fig. 18 is in the middle, and two support bags i 9 shown in fig. 22 are provided on both sides thereof, and are commonly mounted on the second cross plate 622 of the L-shaped link 62. Specifically, the eighth through hole i 81a in the second upper connecting plate 81 of the support airbag 8 in fig. 18 corresponds to the connecting support airbag through hole ii 6g in fig. 13, and the ninth through hole i 91a in the second upper connecting plate i 91 of the support airbag i 9 in fig. 22 corresponds to the connecting support airbag through hole i 6b in fig. 13.

In the vertical test, since the first lower connecting plate 72 in the guide bearing 7, the second lower connecting plate 82 in the support airbag 8 and the second lower connecting plate I92 in the support airbag I9 are all connected with the vibrating table base, the first lower connecting plate 72 in the guide bearing 7, the second lower connecting plate 82 in the support airbag 8 and the second lower connecting plate I92 in the support airbag I9 are fixed in the whole test process; the first upper connection plate 71 in the guide bearing 7, the second upper connection plate 81 in the support airbag 8 and the second upper connection plate i 91 in the support airbag i 9 connected to the flexible support base 6 are vertically moved along with the flexible support base 6, the vertical base 21 and the upper cover 1 during the test due to the vibration or impact excitation of the vibration table moving coil to the vertical base 21. As shown in fig. 6, a boss 214 with a circular hole in the middle is formed on the outer side of the bottom of the second connecting plate 212 of the vertical base 21, the boss 214 is adapted to the moving coil, and a plurality of triangular third reinforcing plates 21e are arranged on the outer side of the boss 214 to bear vibration or impact applied to the vertical base 21 by the moving coil of the vibrating table during the vertical test.

In the horizontal test, the horizontal base 22 and the upper cover 1 move horizontally along with the horizontal sliding table of the vibrating table, as shown in fig. 7, the bottom of the horizontal base 22 is a plane, the bottom of the horizontal base 22 is connected with the horizontal sliding table of the vibrating table through a screw, and the contact area is relatively large.

In the test implementation, the test article is mounted on the hanger adapter plate. Firstly, a vertical test is carried out, wherein the vertical test uses a combination of a vertical base 21, a flexible supporting system, an upper cover 1 and a leveling counterweight 3, the vertical test is provided with the flexible supporting system, the vertical base is flat-bottom V-shaped, the V-shaped structure is easy to generate eccentricity, and the flexible supporting system can correct the eccentricity, so that an electric vibration table vertical expansion table is not needed. The vertical base is connected with the moving coil of the vibrating table in the vertical direction, and because the moving coil area of the vibrating table is very small, the general vibration test requirements cannot be met, the vibrating table is provided with a vertical expansion table to provide a mounting table surface larger than the moving coil for the vertical direction test, and the mounting table surface is larger in use area than the moving coil of the vibrating table, but has the defects of heavier weight, occupation of effective thrust of the vibrating table and inapplicability in the test, so that a connecting structure of the moving coil, the vertical expansion table and a test piece is not needed, the thrust consumed by the vertical expansion table is effectively utilized, and the effective thrust of the electric vibrating table is greatly improved. The formula f=ma, F is the thrust of the vibrating table, and the numerical value is certain; a is test acceleration, and the value of the test acceleration is certain; m is the total mass, including the fixture mass M1, the test piece mass M2, the vertical extension stage mass M3 (if used); according to the formula, it can be known that m=m1+m2+m3 is certain, and the smaller m3 is, the larger m1+m2 is, so that a vertical expansion table is not used, m3=0 is not used, and the effective thrust is improved. After the installation is completed, the vibration control sensor, the vibration monitoring sensor and the strain gauge are installed at the specified positions of the tested products according to specific test requirements (the specific positions are different according to different tested products, and the specific positions are determined according to the test requirements), and the cable specification is fixed. And (3) opening the power supply system, the water supply system and the air supply system, and after checking that no abnormality exists around the vibration table body, opening the vibration table to perform characteristic frequency sweep on the whole test system. And then starting a low-level test condition, adjusting to a test requirement state, starting a formal test, adjusting the test state according to the condition during the period, and recovering the original state after the unidirectional test is completed. Then, a horizontal test is performed, wherein the horizontal test uses a combination of the horizontal base 22, the upper cover 1 and the leveling weight 3, and the horizontal test does not need a flexible support system, and because the horizontal base is connected with the horizontal sliding table of the vibrating table, the contact area of the horizontal base and the horizontal sliding table is large enough, the flexible support system is not needed, and the flexible support system can only be used in the vertical direction, and cannot be used in the horizontal direction, so that the test implementation steps are repeated. The vibrating table used in the test is manufactured by Beijing aerospace Hill test technology Co., ltd, and the model is MPA3436/H1859A.

The upper cover 1, the vertical base 21 and the horizontal base 22 are integrally cast and formed by ZL104A aluminum, and the internal stress is released through heat treatment, so that the internal structure is good through nondestructive detection. The clamp has good mechanical properties, high rigidity, high natural frequency (the natural frequency is 150Hz and is more than 40Hz double of the natural frequency of an airborne suspension), and good transmission properties, and can well complete vibration and impact tests of the airborne suspension.

5 X 15 phi 18 first through holes 1a are arranged at the top of the upper cover 1, so that different suspended object adapter plates can be conveniently installed, a set of main body structure is realized, and various suspended object vibration and impact tests are completed.

The suspension adapting plate is integrally formed by 1Cr15Ni4Mo3N steel, and the tensile strength of the suspension adapting plate is ensured to be greater than that of an airborne suspension.

The leveling counterweight 3, the flexible supporting vertical plate 5 and the flexible supporting base 6 are welded and formed by Q235 steel, so that the connection strength is ensured.

The leveling counterweights 3 can be selected according to different suspended objects, such as missiles, weapon cabins, equipment cabins, hanging beams, transfer beams and the like, and can be combined into new counterweights (different leveling counterweights 3 are different in thickness and accordingly different in mass) so as to adjust the gravity center of the test system.

The installation height of the supporting airbag 8 is 130mm, the pressure is 0.6Mpa, the bearing capacity is 1229Kg, the vertical rigidity is 154Kg/cm under the designed height, the natural frequency is 1.91Hz, the drift diameter phi is 150mm, the outer diameter phi is 208mm, the minimum compression is 80mm, the safe extension is 190mm, and the full stroke is 110mm.

Aiming at the defects of the traditional suspension vibration and impact test clamp, the utility model perfectly overcomes the defects of the traditional suspension vibration and impact test clamp. Firstly, the device has good mechanical properties, high rigidity, high natural frequency and good transmission properties, and can well complete vibration and impact tests of airborne suspended matters; secondly, different leveling counterweights can be selected according to different suspended objects, and new counterweights can be formed by combining the two counterweights, so that the gravity center of the test system is adjusted, and test equipment is protected; thirdly, the top of the upper cover is designed to be of a porous structure, and different suspended object adapter plates can be adapted according to different suspended objects, so that a set of main body structure is realized, various suspended object vibration and impact tests are completed, and resources are saved; fourth, the flexible support system is equipped in the vertical test, so that the electric vibration table does not need to be used for vertical expansion, the effective thrust of the electric vibration table is greatly improved, and the upper limit of test capability is improved.

The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present utility model and its core ideas. The foregoing is merely illustrative of the preferred embodiments of this utility model, and it is noted that there is objectively no limit to the specific structure disclosed herein, since numerous modifications, adaptations and variations can be made by those skilled in the art without departing from the principles of the utility model, and the above-described features can be combined in any suitable manner; such modifications, variations and combinations, or direct application of the concepts and aspects of the utility model in other applications without modification, are contemplated as falling within the scope of the utility model.

Claims (9)

1. The utility model provides an on-board suspended solid vibration, impact test anchor clamps, a serial communication port, include main structure, with the suspended solid keysets and flexible braced system that main structure connects, main structure includes upper cover (1), base (2) and leveling counter weight (3) that are connected with upper cover (1), the suspended solid keysets includes rectangle bottom plate (4), flexible braced system includes a pair of flexible support riser (5) that are parallel to each other, with flexible support base (6) that flexible support riser (5) are connected, with guiding bearing (7) and support gasbag (8) that flexible support base (6) are connected, upper cover (1) includes a pair of parallel first end wallboard (11), connect first connecting plate (12) and lower end board (13) of first connecting plate (12) lower extreme between first end wallboard (11), first connecting plate (12) include first connecting plate upper portion (121) and first connecting plate upper portion (121)'s both sides wall lower extreme that extend parallel to each other first connecting portion (122), upper cover (1) is equipped with one pair of perpendicular base (21) or base (21) are perpendicular to each other, first end wallboard (21) are equipped with base (21) are perpendicular to base (21) or base (2) are perpendicular to each other, A second connecting plate (212) connected between the second end wall plates (211) and a first upper end plate (213) at the upper end of the second connecting plate (212), wherein the second connecting plate (212) is flat-bottom V-shaped, a plurality of rectangular second reinforcing plates (21 c) with arc grooves between the upper end and the lower end are vertically connected between two side walls of the vertical base (21), a plurality of triangular third reinforcing plates (21 e) and fourth reinforcing plates (21 f) are respectively arranged at the outer sides of the bottom of the vertical base (21) and the outer sides of the two side walls, the leveling weight (3) is of a rectangular plate-shaped structure, the flexible supporting vertical plate (5) comprises a first vertical plate (51) and a first transverse plate (52) vertically connected with the first vertical plate (51), the first vertical plate (51) comprises a trapezoid upper part (511) with arc grooves at the upper end and a rectangular lower part (512) extending from the lower end of the trapezoid upper part (511), a plurality of triangular third reinforcing plates (21 e) and a plurality of triangular reinforcing plates (21 f) are respectively arranged in the outer sides of the bottom of the vertical base (21), the leveling weight (3) is of a rectangular plate-shaped structure, the flexible supporting vertical plate (5) comprises a first transverse plate (52) and a trapezoid supporting plate (61) vertically connected with the first transverse plate (51) at the two ends of the first transverse plate (61) and a right-shaped supporting frame (61), l type connecting piece (62) include rectangle second riser (621) and with rectangle second diaphragm (622) that second riser (621) are perpendicular to be connected, be equipped with a plurality of trapezoidal sixth reinforcing plates (6 d) in the contained angle that second riser (621) and second diaphragm (622) formed, second diaphragm (622) both ends with the perpendicular connection in inverted trapezoid supporting beam (61) both ends, direction bearing (7) are in including parallel rectangle first upper junction plate (71), first lower junction plate (72) and perpendicular setting are in cylinder bearing (73) at first upper junction plate (71) and first lower junction plate (72) middle part, first upper junction plate (71) and first lower junction plate (72) middle part are equipped with first sleeve (74) and second sleeve (75) respectively, cylinder bearing (73) upper end passes first upper junction plate (71) and first sleeve (74), cylinder bearing (73) lower extreme embedding in second sleeve (75), direction bearing (7) first upper junction plate (71) and second diaphragm (62) of direction bearing (7) are in parallel connection of second upper junction plate (81) and second upper junction plate (8) are connected, respectively The second connecting plate (82) down and set up calabash shape rubber gasbag (83) between second upper connecting plate (81) and second lower connecting plate (82), second upper connecting plate (81) of supporting gasbag (8) with second diaphragm (622) of L type connecting piece (62) are connected, second upper connecting plate (81) are connected the below of second diaphragm (622).

2. The vibration and impact test fixture for the airborne suspension of claim 1, wherein the horizontal base (22) comprises a pair of parallel third end wall plates (221), a third connecting plate (222) connected between the third end wall plates (221) and a second upper end plate (223) at the upper end of the third connecting plate (222), the third connecting plate (222) is in a flat-bottom U shape, two side walls of the horizontal base (22) are respectively provided with a horizontal rectangular seventh reinforcing plate (22 c), and a plurality of rectangular eighth reinforcing plates (22 d) with arc-shaped grooves between the upper end and the lower end are vertically connected between the two side walls.

3. The vibration and impact test fixture for the airborne suspension according to claim 1, wherein a first through hole (1 a) is formed in the top of the upper cover (1), a first threaded hole (1 d) is formed in the top of a first end wall plate (11) of the upper cover (1), a third threaded hole (3 b) is formed in the leveling weight (3), the third threaded hole (3 b) of the leveling weight (3) is connected with the first threaded hole (1 d) in the upper cover (1) through an inner hexagonal screw, a first through hole (1 e) is formed in a lower end plate (13) of the upper cover (1), a second through hole (21 b) is formed in a first upper end plate (213) of the vertical base (21), the first through hole (1 e) in the upper cover (1) is connected with the second through hole (21 b) in the vertical base (21) through an inner hexagonal screw, a fourth threaded hole (4 a) is formed in a bottom plate (4) of the leveling weight (3), the fourth threaded hole (4 a) of the suspension adapter plate is connected with the second threaded hole (21) through the upper cover (1) through the inner hexagonal screw, the second through hole (21) is uniformly distributed on the outer periphery of the second through hole (21) and is formed in a shape of a circular hole (212), the second through hole (21 a) is connected with the movable coil of the vibrating table through a screw.

4. The vibration and impact test fixture for the airborne suspension of claim 2, wherein a fourth through hole (22 b) is formed in a second upper end plate (223) of the horizontal base (22), a first through hole (1 e) in the upper cover (1) is connected with the fourth through hole (22 b) in the horizontal base (22) through an inner hexagon screw, a round hole is formed in the middle of the bottom of a third connecting plate (222) of the horizontal base (22), tenth through holes (22 a) are uniformly distributed in a radial shape on the periphery of the round hole, and the tenth through holes (22 a) are connected with a vibrating table sliding table through screws.

5. The vibration and impact test fixture for the airborne suspension of claim 1, wherein a second threaded hole (21 d) is formed in a second end wall plate (211) of the vertical base (21), a fifth through hole (5 a) is formed in a first vertical plate (51) of the flexible supporting vertical plate (5), and the second threaded hole (21 d) in the second end wall plate (211) is connected with the fifth through hole (5 a) in the first vertical plate (51) through a screw.

6. The vibration and impact test fixture for an airborne suspension according to claim 1, wherein a first waist-shaped hole (5 b) is formed in a first transverse plate (52) of the flexible supporting vertical plate (5), a connecting vertical plate through hole (6 a) is formed in a reversed trapezoid supporting beam (61) of the L-shaped connecting piece (62), a connecting supporting air bag through hole I (6 b), a connecting guiding bearing through hole (6 c), a sixth through hole (6 e), a second waist-shaped hole (6 f) and a connecting supporting air bag through hole II (6 g) are formed in a second transverse plate (622), a first waist-shaped hole (5 b) in the first transverse plate (52) is connected with the connecting vertical plate through hole (6 a) in the second transverse plate (622) through a screw, a seventh through hole I (71 a) is formed in four corners of a first upper connecting plate (71) of the guiding bearing (7), a seventh through hole II (72) of the first lower connecting plate (72) of the guiding bearing (7) is formed in four corners of the second connecting plate, a seventh through hole III (72 b) is formed in the second connecting plate (72) through a screw, a threaded hole (73) is formed in the second connecting plate (72 b) is formed in the second connecting vertical plate (72), the bearing support is characterized in that a seventh through hole I (71 a) on the first upper connecting plate (71) is connected with a connecting guide bearing through hole (6 c) on the second transverse plate (622) through a screw, an eighth through hole I (81 a) is arranged on four corners of a second upper connecting plate (81) of the support air bag (8), an eighth through hole II (82 a) is arranged on four corners of a second lower connecting plate (82) of the support air bag (8), the eighth through hole I (81 a) on the second upper connecting plate (81) is connected with a connecting support air bag through hole II (6 g) through the screw, a cylindrical bearing (73) penetrates through the sixth through hole (6 e), and the seventh through hole II (72 a) on the first lower connecting plate (72) and the eighth through hole II (82 a) on the second lower connecting plate (82) are connected with a vibrating table base through the screw.

7. The vibration and impact test fixture for the airborne suspension of claim 3, wherein the suspension adapter plate further comprises an adapter piece I (41) connected with the middle part of the bottom plate (4), and a horizontal through hole (4 b) is formed in the adapter piece I (41) and perpendicular to the fourth threaded hole (4 a).

8. The vibration and impact test fixture for the airborne suspension of claim 3, wherein the suspension adapter plate further comprises an adapter piece II (42) connected with the middle part of the bottom plate (4), and a vertical through hole (4 c) is formed in the adapter piece II (42) and is parallel to the fourth threaded hole (4 a).

9. The vibration and impact test fixture for the airborne suspension of claim 1, wherein the middle parts of the second upper connecting plate (81) and the second lower connecting plate (82) of the supporting air bag (8) are respectively provided with a third waist-shaped hole (81 b) and a fourth waist-shaped hole (82 b), two sides of the third waist-shaped hole (81 b) and the fourth waist-shaped hole (82 b) are respectively provided with a pair of third through holes (81 c) and a pair of fourth through holes (82 c), the middle parts of the upper top end and the lower top end of the rubber air bag (83) are respectively provided with a pair of sixth threaded holes (83 a) and an eighth through hole (83 b), the pair of sixth threaded holes (83 a) and the eighth through hole (83 b) are distributed in an isosceles triangle shape, the pair of sixth threaded holes (83 a) and the third through holes (81 c) of the rubber air bag (83) are connected through screws, and the other pair of sixth threaded holes (83 a) and the fourth through holes (82 c) of the rubber air bag (83) are connected through screws.